Window ventilating fan



May 12, 1959 A. Dl LORETO WINDOW VENTILATING FAN 2 Sheets-Sheet 1 Filed Mai-ch 29. 1954 y W I QM Gttomeg May 12, 1959 A. D! LORETO WINDOW VENTILATING FAN 2 Sheets-Sheet 2 Filed March 29. 1954 United States Patent 2,885,946 wrNDow VENTILATING FAN Albert Di Loreto, Erie, Pa. Application March- 29, 1954, Serial No. 419,181

2 Claims. or. 98-94) This invention relates to ventilators and more particularly to fans for use in casement windows. 7

Heretofore, there has been no satisfactory ventilator made for casement windows. Fans have been provided which rest in front of the windows and which have elaborate support panels to hold the fans in place at the win-,

Another object of myinvention is to provide a fan' for use on a casement window wherein the fan will not obstruct an appreciable amount of light from entering through the window.

Another object of my invention is to provide a fan for use in casement windows wherein the fan may be used to force air either in or out of the room wherein the fan is located.

Another object of the invention is to provide a fan and screen combination for use on any type of window in either horizontal or vertical position.

With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawings and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportions, and minor details of construction without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawings:

Fig. 1 is a view of my novel ventilator mounted on a fan.

Fig. 2 shows the frame mounted in a casement window and the window frame itself is shown as a cross sectional view taken longitudinally of the center of the screen with the screen and fan shown in full lines.

Fig. 3 is a cross sectional view taken on line 3-3 of Fig. 1; and

Fig. 4 is a partial enlarged cross sectional view taken on line 4-4 of Fig. 2.

Fig. 5 is a partial central vertical cross sectional view of the lower half of the fan housing and motor shown in Fig. 1.

Now with more specific reference to the drawings, I show a screen having a frame 1 with screen wire 2 attached thereto in a conventional manner. The screen wire 2 preferably has an aperture 3 therethrough and a fan 4 is mounted in the aperture 3. The fan 4 has a frame 5 which is supported by brackets or bars 6 to the Patented May 12, 1959 portion in cross section terminating in an outer peripherical flange 71. This is in accordance with good design practice to give strength and rigidity thereto. The brackets or bars 6 are preferably made of a spiral or other attractive design. The brackets or bars 6 may be supported to the frame 1 by means of the screws 7a which extend through holes in the brackets 6 and are threaded into the metal of the frame 1. The other ends of the brackets 6 have screws 10 therein which extend into the frame on the fan. The brackets 6 could be attached to the screen frame 1 and to the fan frame 5 by means of welding, brazing, or any other well known means. The fan proper 11 has a holder 12 which is supported in the fan frame 5 by means of trunnions 13 which have male members 60 pivoted into female members 61 on the fan frame 5. The fan 11 is swingably mounted on the frame and rotatable about the trunnions 13 about a vertical axis passing through the center of the fan and parallel to the plane of the screen, and has the catch member 15 attached to the side thereof which engages a catch 16 at the side of the frame 5 for holding the fan 11 in place. The fan 11 has blades 17 and the screen wire 2 is secured around the outside edge of the fan frame 5 at 19. Screen 2 is held between flange 71 of frame 5 and plate 80 by screws 7 which extend through bores in the plate 80 and threadably engage tapped holes in the flange 71 to clamp the screen therebetween.

The holder 12 is made up of two front wire rings and 41 disposed concentric to each other and in front of the fan 11. An outer ring 42 is disposed concentric ""tothe rings 40 and 41 and has the male members 60 Radial wires 44 are attached to a central member '45 and extend outwardly to the outer ring 42 and inwardly extending wires 144 are attached to the outer ring 42 and terminate in engagement with the rear ring 141.

The wires 44 are welded to the front rings 40 and 41 and the outer ring 42 at each point of engagement therewith. V-shaped wire members 46 have their legs extending radially behind the fan blades 17 and attached at their outer ends to the rear ring 141. Intermediate parts 47 of the V-shaped members 46 are clamped to the front end of a motor 48 by screws 49 which extend through a rectangular plate 50 and clamp the intermediate parts 47 between the plate 50 and the front end of the motor 48.

During operation, the width of the screen frame 1 is attached to a window in the manner for which the screen was designed to be attached. When it is desired to open the window, the window may be opened as conventionally done without disturbing the fan. When it is desired to provide forced ventilation for the room, the motor is attached to a supply of electrical power and the fan driven. The fan can be rotated around the trunnions 13 to cause the air to be driven in either direction. The electrical cord 21 passes through a hole 22 in the fan frame 5 and attached to the motor. The catch 16 abuts against the frame 1 and prevents the fan motor from rotating on its vertical axis more than one hundred eighty degrees. The motor may be, therefore, rotated one hundred eighty degrees on its vertical axis without twisting the electrical cord objectionably.

To remove the fan from the screen, it is merely necessary to remove the screws 7 and 7a. This allows the assembly comprising the motor and supports 6 to be removed from the screen wire 2 and frame 1. Obviously, the fan 4 could be mounted on the screen without the hole 3 being formed in the screen wire 2, thereby preventing insects and other foreign material from entering the room; however, the fan could not then be rotated on its vertical axis to reverse it.

A wall 34 of a house has an inside surface 32 and an outside surface 33. A- window frame 35 is swingable outwardly from its supporting frame 37 and hingedly connected thereto by hinges 38 and 39 in a conventional manner. The window has a top glass panel 30 and a bottom glass pane 31-. When the window is open, it is swung out at right angles to the surface 33 of the wall' 34 so that if it is desired to reverse the fan by rotating the male member 60 in the female member 61, this can be done Without interference with the window. Further, when the fan is rotated, the window is closed and, therefore, no interference is had with the fan.

In the foregoing specification, I have set forth the invention in its preferred practical forms but I am aware that the structure shown is capable of modification within a range of equivalents Without departing from the invention which is to be understood is broadly novel as is commensurate with the appended claims.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. In combination, a ventilating fan and a screen supporting said fan comprising a rectangular metal frame forming a margin adapted to be attached to a window opening, an insect screen wire covering said marginal frame and attached at the edges thereof to said marginal frame, an opening formed in said insect screen wire, a fan frame attached around its edges to the edges of said screen wire around said opening, a fan supported on said fan frame by means of trunnions, and two bars, said bars being made of flat material bent in S-shape, one end of each of said S-shaped bars being attached at one curved end thereof to said fan frame on one side thereof and attached at the other curved end thereof to said marginal frame, and a third bar having its ends bent toward each other in spiral form, said spiral ends being attached to said marginal frame and a portion of said third bar between said ends being attached to said fan frame and extending between said fan frame and said marginal frame, said bars supporting said fan frame and absorbing the vibration of said fan, said bars being disposed in a plane parallel to the plane of said screen.

2. In combination, a ventilating fan and a screen supporting said fan comprising a rectangular metal frame forming a margin adapted to be attachedto a window opening, an insect screen wire covering said marginal frame and attached at the edges thereof to said marginal frame, an opening formed in said insect screen wire, a fan frame attached around its edges to the edges of said screen wire around said screen opening, means supporting said fan frame on said marginal frame, a fan supported on said fan frame, said fan frame comprising a circular frame member having a flange thereon, said flange adapted to engage said screen wire. around the edges of said screen opening, a plate having an opening therethrough adapted to be disposed against and conforming to said fan frame flange, and screws extending through said flange of said fan frame and said plate and clamping said screen member therebetween, said fan being mounted in said fan frame on trunnions whereby said fan can be rotated and the direction of air forced thereby can be reversed, said means supporting said fan frame comprising first bars, said bars being made of flat material bent in S-shape, one end of each of said- S-shaped bars being attached at one curved end thereof to said fan frame on one side thereof and attached at the other curved end thereof to said marginal frame, and a second bar having its ends bent toward each other in spiral form, said spiral ends being attached tosaid marginal frame and a portion of said second bar between said ends being attached to said fan frame, said first and second bars being disposed in a plane parallel to the plane of said screen whereby vibration of said fan is absorbed by said bars.

References Cited in the file of this patent UNITED STATES PATENTS 2,055,592 Reed Sept. 29, 1936 2,096,621 Solfield Oct. 19, 1937 2,141,762 Ravven Dec. 27; 1938 2,483,547 Koch Oct. 4, 1949 2,620,126 Lyne: Dec. 2, 1952 2,620,721 Krauss Dec. 9, 1952 2,658,441 Johnson Nov. 10, 1953 FOREIGN PATENTS 52,603 Netherlands June 15, 1942 814,034 Germany Sept. 17, 1951 OTHER REFERENCES A Sensational New Window Fan, by W. W. Welch Co., Aug. 14, 1951. 

